org.apache.commons.io.filefilter

Class CanReadFileFilter

java.lang.Object

org.apache.commons.io.filefilter.AbstractFileFilter

org.apache.commons.io.filefilter.CanReadFileFilter

All Implemented Interfaces:

java.io.FileFilter, java.io.FilenameFilter, java.io.Serializable, IOFileFilter

public class CanReadFileFilter
extends AbstractFileFilter
implements java.io.Serializable

This filter accepts Files that can be read.

Example, showing how to print out a list of the current directory's readable files:

 File dir = new File(".");
 String[] files = dir.list( CanReadFileFilter.CAN_READ );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }
 

Example, showing how to print out a list of the current directory's un-readable files:

 File dir = new File(".");
 String[] files = dir.list( CanReadFileFilter.CANNOT_READ );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }
 

Example, showing how to print out a list of the current directory's read-only files:

 File dir = new File(".");
 String[] files = dir.list( CanReadFileFilter.READ_ONLY );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }
 

Since:

1.3

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static IOFileFilter	CAN_READ Singleton instance of readable filter
static IOFileFilter	CANNOT_READ Singleton instance of not readable filter
static IOFileFilter	READ_ONLY Singleton instance of read-only filter

Method Summary

Modifier and Type	Method and Description
boolean	accept(java.io.File file) Checks to see if the file can be read.

Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter

accept, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CAN_READ

public static final IOFileFilter CAN_READ

Singleton instance of readable filter

CANNOT_READ

public static final IOFileFilter CANNOT_READ

Singleton instance of not readable filter

READ_ONLY

public static final IOFileFilter READ_ONLY

Singleton instance of read-only filter

Method Detail

accept

public boolean accept(java.io.File file)

Checks to see if the file can be read.

Specified by:

accept in interface java.io.FileFilter

Specified by:

accept in interface IOFileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File to check.

Returns:

true if the file can be read, otherwise false.